Five burning questions heading into Nebraska-Wisconsin weekby:Robin Washut•about 16 hours•RobinWashutRead In AppNebraska Cornhuskers quarterback Dylan Raiola (15) throws as offensive lineman Bryce Benhart (54) provides coverage against Southern California Trojans defensive end Kameryn Fountain (49) during the second half at the Los Angeles Memorial Coliseum. Mandatory Credit: Gary A. Vasquez-Imagn ImagesHere are five of the biggest questions facing Nebraska heading into this week's Senior Day matchup against Wisconsin.